Home / 275,585.22-380,278.26-154,739.70

Finding the Fourth Proportional to 275,585.22, 380,278.26 and 154,739.70

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Solution

The fourth proportional to 275,585.22, 380,278.26 and 154,739.70 is: 213,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,585.22 : 380,278.26 = 154,739.70 : x
  2. Step 2: Convert to fraction form
    275,585.22/380,278.26 = 154,739.70/x
  3. Step 3: Cross multiply
    275,585.22x = 380,278.26 × 154,739.70
  4. Step 4: Simplify right side
    275,585.22x = 58,844,143,868.92
  5. Step 5: Solve for x
    x = 58,844,143,868.92/275,585.22
  6. Step 6: Final answer
    x = 213,524.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.